Warning: Cannot bind an instance to a static closure, this will be an error in PHP 9 in /var/www/html/vendor/slim/slim/Slim/CallableResolver.php on line 177

Fatal error: Uncaught TypeError: Slim\CallableResolver::bindToContainer(): Return value must be of type callable, null returned in /var/www/html/vendor/slim/slim/Slim/CallableResolver.php:179 Stack trace: #0 /var/www/html/vendor/slim/slim/Slim/CallableResolver.php(54): Slim\CallableResolver->bindToContainer(NULL) #1 /var/www/html/vendor/slim/slim/Slim/Middleware/ErrorMiddleware.php(106): Slim\CallableResolver->resolve(Object(Closure)) #2 /var/www/html/vendor/slim/slim/Slim/Middleware/ErrorMiddleware.php(90): Slim\Middleware\ErrorMiddleware->getErrorHandler('Slim\\Exception\\...') #3 /var/www/html/vendor/slim/slim/Slim/Middleware/ErrorMiddleware.php(79): Slim\Middleware\ErrorMiddleware->handleException(Object(Slim\Psr7\Request), Object(Slim\Exception\HttpNotFoundException)) #4 /var/www/html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(129): Slim\Middleware\ErrorMiddleware->process(Object(Slim\Psr7\Request), Object(Slim\Routing\RouteRunner)) #5 /var/www/html/src/Middleware/HtmlFormCsrfInjectorMiddleware.php(22): Psr\Http\Server\RequestHandlerInterface@anonymous->handle(Object(Slim\Psr7\Request)) #6 /var/www/html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(178): App\Middleware\HtmlFormCsrfInjectorMiddleware->process(Object(Slim\Psr7\Request), Object(Psr\Http\Server\RequestHandlerInterface@anonymous)) #7 /var/www/html/src/Middleware/CsrfMiddleware.php(26): Psr\Http\Server\RequestHandlerInterface@anonymous->handle(Object(Slim\Psr7\Request)) #8 /var/www/html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(178): App\Middleware\CsrfMiddleware->process(Object(Slim\Psr7\Request), Object(Psr\Http\Server\RequestHandlerInterface@anonymous)) #9 /var/www/html/src/Middleware/MailQueueProcessingMiddleware.php(28): Psr\Http\Server\RequestHandlerInterface@anonymous->handle(Object(Slim\Psr7\Request)) #10 /var/www/html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(178): App\Middleware\MailQueueProcessingMiddleware->process(Object(Slim\Psr7\Request), Object(Psr\Http\Server\RequestHandlerInterface@anonymous)) #11 /var/www/html/src/Middleware/SecurityHeadersMiddleware.php(17): Psr\Http\Server\RequestHandlerInterface@anonymous->handle(Object(Slim\Psr7\Request)) #12 /var/www/html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(178): App\Middleware\SecurityHeadersMiddleware->process(Object(Slim\Psr7\Request), Object(Psr\Http\Server\RequestHandlerInterface@anonymous)) #13 /var/www/html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(73): Psr\Http\Server\RequestHandlerInterface@anonymous->handle(Object(Slim\Psr7\Request)) #14 /var/www/html/vendor/slim/slim/Slim/App.php(209): Slim\MiddlewareDispatcher->handle(Object(Slim\Psr7\Request)) #15 /var/www/html/vendor/slim/slim/Slim/App.php(193): Slim\App->handle(Object(Slim\Psr7\Request)) #16 /var/www/html/public/index.php(64): Slim\App->run() #17 {main} thrown in /var/www/html/vendor/slim/slim/Slim/CallableResolver.php on line 179